Average costs for subsoiling for MnDOT projects from 2002-2012 Average costs for subsoiling for MnDOT projects from 2002-2012

Average costs for subsoiling for MnDOT projects from 2002-2012
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Year	Spec No.	Acres	Ave Bid Price	No. Projects
2002	2105.55	200	$ 61.26	3
2003		14	$ 646.87	3
2004		501	$ 62.72	5
2005		73	$ 153.48	7
2006		1	$ 2,500.00	1
2007		231	$ 90.87	4
2008		69	$ 245.65	2
2009		70	$ 450.09	9
2010		117	$ 344.09	7
2011		73	$ 329.23	2
2012		34	$ 420.99	4